RT info:eu-repo/semantics/article T1 Characterization of dysfunctional lens index and opacity grade in a healthy population A1 Martínez Plaza, Elena A1 Ruiz Fortes, Pedro A1 Soto Negro, Roberto A1 Hernández Rodríguez, Carlos J. A1 Molina Martín, Ainhoa A1 Arias Puente, Alfonso A1 Piñero, David P. K1 Eye - Diseases K1 Ojo - Enfermedades y defectos K1 Crystalline lens K1 Cristalino - Enfermedades K1 Cataract K1 Cataratas (Oftalmología) K1 Higher-order aberrations K1 Ophthalmology K1 Clinical biochemistry K1 Bioquímica clínica K1 Medical technology K1 Dysfunctional lens syndrome K1 Síndrome del cristalino disfuncional K1 32 Ciencias Médicas K1 3201.09 Oftalmología K1 3314 Tecnología Médica AB This study enrolled 61 volunteers (102 eyes) classified into subjects < 50 years (group 1) and subjects ≥ 50 years (group 2). Dysfunctional Lens Index (DLI); opacity grade; pupil diameter; and corneal, internal, and ocular higher order aberrations (HOAs) were measured with the i-Trace system (Tracey Technologies). Mean DLI was 8.89 ± 2.00 and 6.71 ± 2.97 in groups 1 and 2, respectively, being significantly higher in group 1 in all and right eyes (both p < 0.001). DLI correlated significantly with age (Rho = −0.41, p < 0.001) and pupil diameter (Rho = 0.20, p = 0.043) for all eyes, and numerous internal and ocular root-mean square HOAs for right, left, and all eyes (Rho ≤ −0.25, p ≤ 0.001). Mean opacity grade was 1.21 ± 0.63 and 1.48 ± 1.15 in groups 1 and 2, respectively, with no significant differences between groups (p ≥ 0.29). Opacity grade significantly correlated with pupil diameter for right and all eyes (Rho ≤ 0.33, p ≤ 0.013), and with some ocular root-mean square HOAs for right and all eyes (Rho ≥ 0.23, p ≤ 0.020). DLI correlates with age and might be used complementary to other diagnostic measurements for assessing the dysfunctional lens syndrome. Both DLI and opacity grade maintain a relationship with pupil diameter and internal and ocular HOAs, supporting that the algorithms used by the device may be based, in part, on these parameters. PB MDPI SN 2075-4418 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/63184 UL https://uvadoc.uva.es/handle/10324/63184 LA eng NO Diagnostics, 2022, Vol. 12, Nº. 5, 1167 NO Producción Científica DS UVaDOC RD 29-may-2024